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Angelina_Jolie [31]
2 years ago
7

Plss help me solve these 2 !!!!!!!!!!! for a brainlist ;))

Mathematics
1 answer:
lisabon 2012 [21]2 years ago
3 0

Answer:

1. d

2. a

Step-by-step explanation:

Thats how it goes!

Branliest plzzz

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Stock A ‘s returns have a standard deviation of 0.5, and stock B’s returns have standard deviation of 0.6.The correlation coeffi
galben [10]

Answer:

The variance of the profile is 0.2179.

Step-by-step explanation:

We are given the following in the question:

\sigma_A = 0.5\\\sigma_B = 0.6\\\rho_{A,B} = 0.5\\w_A = 70\% = 0.7\\w_B = 30\% = 0.3

Variance of portfolio is given by:

w_A^2\sigma_A^2 +w_B^2\sigma_B^2 + 2w_Aw_BCov_{A,B}

Cov_{A,B} = \rho_{A,B} \times \sigma_A \times \sigma_B \\=0.5\times 0.5 \times 0.6\\=0.15

Putting values, we get,

w_A^2\sigma_A^2 +w_B^2\sigma_B^2 + 2w_Aw_BCov_{A,B}\\=(0.7)^2(0.5)^2 + (.3)^2(0.6)^2 + 2(0.7)(0.3)(0.15)\\=0.2179

Thus, the variance of the profile is 0.2179.

4 0
3 years ago
What’s number 14 and is 15 right
avanturin [10]
Question 14 is (1,4)
15 rectangle
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3 years ago
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just olya [345]
X = 19.

Explanation:

This expression is vertical from the angle 135, meaning it is congruent. With that being said, we would need to find what 7 multiplies by to give us 2 less than 135, which would be 133. Because 133 divided by 7 equals 19, x = 19. If we plug this in, we get the following equation: 7(19) + 2 = 135.
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Do the ratios 3:2 and 54:10 form a proportion
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Answer:

No.

Step-by-step explanation:

3/2=1.5 and 54/10=5.4.

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1<br> What are the basic tools of Euclidean geometry?
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The straightedge and the compass. The name is due to the fact that connecting points with segments, prolonging segments and drawing circles with a given center and a given radius are the basic geometric constructions described in the first three Euclidean postulates.

Step-by-step explanation:

Mark as brainliest

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2 years ago
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